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Adding a salt to water can (or does not) change the pH of the water depending on the salt you add. How the pH of the solution changes (or not) depends if the dissociate ions react with water or not. This is called Hydrolysis of a Salt. In this lab, each group will calculate and make one of the 4 solutions below.
Once made, each group will give a portion of their solution to the other groups. Each group will then use their pH probe (and then pH paper) to determine the pH of the solution. You will also use red and blue litmus paper (and record the color change in your data table even though data will not be used in the pH calculations.
The 4 solutions you are making are each made from a solid ionic compounds and you will be making 500mL of a 1.0M solution.
a. NaCl
b. NH4Cl
c. NaC2H3O2
d. NH4C2H3O2
In calculation section, calculate the pH of the 3 solutions (solution a, b, c) and predict if solution d should be equal, greater or less than a pH=7.0. (please show Ka and Kb value to justify your answer).